Typewriting machine



F. U. CONARD l TYPEWRITING MACHINE sept. 22, 1925. 1,554,558

Filed Sept. 16. 1922 Patented Sept. 22, 1925@ UNITED sTATss PATENT osi-uca FREDERICK U. CONARD, 0F BROOKLYN, liIEW YORK, ASSIGNOR TQ UNDERVIOOD TYPE- WRITEB, COMPANY, 0F NEW TYPENE-ITING lllMCHINE.

Application filed September Be it known that l, Funnnmoii U. CoNAnD, a citizen oit the United States, residing` ,in Brooklyn Borough, in the county of Kings, city and State ot New York, have invented certain new and useful Improvements in Typewritinp; lv achines, of which the following is a specification.

The invention relates to typewriting machines, and more particularly to mechanisms and parts adapting the same to use ilorstenciling purposes.

For stencilinp', provided with facing-pieces of celluloid or similar material; and., as these become worn,

replacementthereof is necessary, The set-` ting and repeated replacements ot the` fac-.

ing-material have heretofore often involved considerablel inconvenience to the operator.; and the addition of more or less unsatisfactory and expensive equipment to the inachine. The use of the facing-material, in the form of a band, permitting replacementof worn surface by simple progressive shifting` of the band with respect to the printing' pointh has been diflieult or impracticable because of adherence to the ordinary cylindrical platen and of the necessity of providing` means for holding' and guiding` the band to the platen between the .Laine and the Worlepicce without interfering with the letter-- feed and line-space movements of the latter; and because of structural :features ordinarily present in a machine in which a cylindrical platen is mounted for letter-feed and linespace movements on the carriage with the work-piece. l

An object of the invention is the provision of means adapting; the machine to the use therein of a facing' of Celluloid, or other suitable materiah for the platen, in the form of a ribbon which may be fed progressively across the printingl point, preferably whorizontally from `one tothe other side of the machine, to' present fresh surfaces or areas thereof for stenciling' as previously presented surfaces thereof become worn.

A feature of the invention is the provision ot' means for guiding' and holding' the ribbon to the platen, ribbon guiding),l and holding means, such that the ribbon may be held snugly to, and fed easily over, the platen, between the platen the platen is ordinarily and of a mounting of the.

16, 1922. Serial No. 588,581.

and a work-piece-holder, without obstruction to the latter, and while permitting` of free and ample letter-feed and line-space movements of the work-piece across the printing point in the usual way.

' A feature of the invention is theprovision of a platen having no letter-feed movement, and which allows for the location of ribbon holding and guiding),` means at-,the sides thereof, behind and out of the path of letterfeed and line-space movements of the workpiece and nurh-piece-holder. Y

An objectV ot' the invent-ion is the provision, on the letter-feed carriage for the ivoiliz-piece-holdern of means for e'l'lecting a line-space feed of the work-piece with respect to the platen.

A Vfurther object of the invention is the provision of means whereby standard linespace mechanisms on standard letter-feed carriages may be employed to actuate a few Vnovel and simple parts to determine the linespaceniovements of the work-piece with respect to the platen.

Further objects of the invention are the provision of means whereby a platen, which does not participate in the letter-feed movements of the work-piece-caiiriage, may, nevertheless, be given a case-shift movenient with the latter; and the provision of means whereby a tti-inciting or ijiriating ribbon may he held by the platen, to have caseshift movement therewith.

A feature of the invention is the provision of means, actuated independently of, but controlled by, the line-space lever, or its equivalent, for effecting line-space movement of the Work-piece; the same being adapted for line-spacing, with respect to the platen, of a work-piece mounted on a carriage havingletter-feed movement with respect to the platen.

Y An object of the invention is the provision of means, for the purposes above mentioned, which shall permit of the insertion of cards,

bottom endtirst, downward to initial print- 'ing' position, atthe front of the platen, in a froni'1-strike typewriting` machine. @ther features and advantages will hereinafter appear.

In the accompanying drawings, Figure lis a top plan view of the platencarriage and certain associatecl'parts 0f standard Underwood typewriting machine having the mechanism of the present invention applied thereto.

Figure 2 is a view in front elevation of the structure shown in Figure 1.

Figure is a view in cross-'sectional side elevation taken Aon the line of Figure 2; the card-controlling bail device being shown in initial printing position.

Figure 4 is a view similar to Figure 3, except that the card-controlling bail device and card are shown in the position to which the same have been fed in the line-spacing operation in printing.

Figure 5 is a view, in cross-section, on the line 5 5 of Figure 2.

The frame which, in the Underwood typewriting machine, serves as the platen-frame comprises side pieces connected and tied together in the rear by a cross-piece 11. Journaled in the side pieces 10 is a shaft 12, which has heretofore served as the platenarle. A line-feed movement of this shaft is effected by means of a ratchet-wheel 13 fast thereon. The ratchet-wheel, and consequently the shaft, receives its line-feed movement from a pawl 14 pivotally mounted on a slide 15 and held to the ratchet-wheel by a spring, not shown. A rearward thrust of the slide 15, to turnthe ratchet-wheel, is effected by means of an arm or finger 16 on a shaft 17, to which shaft is also made fast line-space lever 18. A spring, not shown, returns the slide and line-space Vlever to normal position after each operation thereof. A spring-detent 19, by engagement of the teeth of the ratchet-wheel, holds the latter and the shaft against accidental displacement.A

The frame 10-11, in which the shaft 12 is journaled, has movement in letter feed and return directions in the machine; and, for this purpose, there is fast to each of the side pieces 10 a bracket 20, which brackets carry a fixed rod 21 having centrally secured thereto another bracket 22 on which is journaled a roller 23 supported by and adapted to rid-e upon a rail 24 on a shift-frame 25 pivoted at its rear to the main frame of the machin This mounting of the frame 10H 11 on the shift-frame 25, and the means bv which the latter frame is supported and swung thereon between case positions, may be those found in the Underwood Standard typewriting machine, and so need not be here further described in detail.

The type-.bars 26 are pivoted in a segment 27`-to be swung upward and rearward to the f printing point'from a normally horizontal position. This segment plate and typeguide 28Y mounted thereon may also be of the construction present in the Underwood machine.

. he platen of the present machine is not ay rotary platen, It is a block 29, preferably of met-al having a passage 30 therethrough for the shaft 12. The shaft 12 fits snugly to the upper and lower walls of the opening or passage 30, so that the platen 29 will have movement with the shaft 12 bctween case -positions. For supporting the platen 29 in correct position and for guiding the saine in its movements between case positions, there are provided brackets 31 having gooseneck formation to permit the same 'to pass down behind the rail 24 and to be brought forward to the segment 27, t0. which latter it is secured, by means of screws 32, which pass through ears 33 on the brackets and thread into the segment. The upper rear reach of each bracket 31 terminates in pins or guides 34 to be snugly received in vertical guideways or holes in the rear of the platen block 29. A The guides 34, therefore, hold the platen against all movement, except case-shifting movement, and guidethe platen in the latter movement. In order to allow for the slight angular movement of the shift-frame 25, the opening 30 in the platen, through which the shaft 12 passes, may be slightly elongated, as shown in Figure 3. i The forward or printing surface of the platen is preferably curved, as shown at 35, to provide for a close setting of a card or work-piece against the same. 1t wil be obvious that, due to the engagement of the shaft 12 with the platen block, the latter will move with the frame 10-11 on actuation of the case-shifting frame 25.

The cards, one of ywhich is'shown at 36, Figure 3, are supported and guided by fingers 37, which are positioned to engage the margins thereof. The fingers 37 are shown as strips of sheet-metal folded upon themselves to have a rear reach 38 and a front reach 39; the front reach being preferably flared forward at its upper edge, as at 40, to form a mouth for receiving and guiding the cards to position between the front and hack reaches of the fingers. Near their upper and lower ends, the front and rear reaches of the fingers are connected and made unitary by ears 41 and 41a, which are forn'ied in the stamping of the fingers, see Figures 2 'and 5. The card holding and guiding fingers 37 have rearward offsets 42 to receive screws 43 for securing and supporting the same from the under side of a bracket 44.- r['he bracket 44-is secured by screws 45 to the side pieces 1() of the frame in which the shaft 12 is joiu'naled.r

The earsor tongues 41 and 41a may serve Vas side marginal guards or guides for the card, yThelower edge of the card is supported upon a cross-bar 4G, which is set between the front and rear reaches of the lingers 37, and Yis movable up and down. As indicated in Figure 5, the bar 46, near its ends, ,may be shouldered as at 47, so that,

by engagement with the fingers 37, lateral displacement of the bar may be prevented.v

As shown in Figures 2 and 5, the ends of the bar project laterally beyond the fingers 37,` and have connected thereto the lower ends of springs 48. The upper ends of the springs 48 are connected to ears 49 on the lingers 37. Then the bar is in its lower, Figure 2, position, the springs are tensioned and tend to lift the bar and card thereon. The normal position of the bar may be that indicated in Figure 4, and, when the card is forced down to Figure 3, initial printing, position, the bar is Carried with it against the tension of the springs 48. For holding the card in printing position, against the action of the springs, and for controlling the upward line-space movement of the springs, the following device is employed.

Fast on the line-space shaft 12 is an arm or arms 50, connected by a link or links 51 to a bail, fast to a rock-shaft 52, journaled in the side plates 10, and comprising arms 53, connected b y a cross-piece 54. Fast to, and projecting fron'1,`the cross-piece 54 are lingers 55 for engagement with the upper edge of any Card located on the lingers 37. The tensio-n of the springs 48 on the bar 46 causes the card to be held againstthe lingers 55, and to follow the fingers 55 upon upward movement of the bail. The bracket 44, which supports the lingers 37, has a U-shaped offset 44a therein, so that the same may Clear the ngers 55 and allow for movement of the bail. The spring which holds the detent 19 against the line-space ratchet-wheel 13 is suliiciently strong to prevent rotary movement of the shaft 12 under the action of the springs 48. As the shaft 12 receives its linespace movement from the line-space lever 1S, the bail is given a step-by-step or linespace upward movement from the initial, Figure 3. printing position to Figure 4 position, and the springs 48, in causing the card to follow `the bail, effect a line-space movement ofthe card.

As hereinbefore mentioned, the Celluloid strip, set against the face of the platen or anvil 29, serves as a printing surface or facing for the latter. The Celluloid is shown as in the form of a ribbon 56,.wound upon and adapted to be fed from one to another of two spools 57, set upon pins or shafts 58 on brackets 59, attached to lthe main framemembers 60. By means of finger-pieces 61 on the spools, the latter may be turned to present a fresh piece of Celluloid `at the printing point after another part of the celluloid has become worn.

The Celluloid ribbon is guided to, and held against, the `platen by means of a set of foin1 idlers, carried by pins or shafts 62 and 63 on forward reaches 64 of the brackets 31. The idlers 65 O11 tho PDS .63 Y? 901103179; .$9

Y bon only that, in passing the ribbon around behind the same, and then forward over the con Vex surface of the platen, the ribbon is bent to the curvature of the face of the platen. The idlers 66 on the pin-shafts 62 are convert, so that, in passing the ribbon over and in front of the same, and thence rearward to the idlers 65, the ribbon is bent to the curvature of the latter idlers. By reason of the position of Athe idlers, with respect to each other, and with respect to the platen, and of the manner in which the Celluloid ribbon is wound around the same, the ribbon is held snugly, and with the proper degree of taut-- ness, against the platen. In Figure 1, the spools 57 are shown as set forward in such. manner that the ribbon, on leaving the same, is inclined rearward, thence to be led to the idlers 66, in a direction parallel to the shaft 12. The ribbon is bent around and guided by ears 68 on the fingers 37.

The idlers or guide-pulleys 65 are so set with respect to the platen that their flanges 67 Closely overlie the platen. The idlers or guide-pulleys 65 and 66 are, furthermore, free to move up and down on their pinshafts 62and 63. Consequently, by reason of the overlapping of the flanges 67 with respect to the platen, the latter', in its Case-- shifting movements, carries with it the idlers; and the Celluloid ribbon, being set betweenthe flanges 67 of the idlers 65, likewise participates -in the case-shifting movement of the platen. fore, centeredforV printing in either/caseposition. l

Since the platen has no movement in letter-feed and return directions, the ribbon holding and guiding pulleys 65 and 66 may, as shown in the drawings, be set back behind the face of the platen out of the way of the cards or `work-pieces, and up close to the sides of the platen,in such manner as to assure a snug setting of the ribbon over the platen. The shaft 12 is free to move longitudinally of the platen, and, therefore, the carriage, with the work-pieee-support and line-space mechanism, may-.move in letterfeed and return directions unobstructed by the fixed platen and ribbon-guiding devices, Except for the provision of the work-pieceholder and the elimination ofthe cylindri-` cal platen, the carriage may, consequently, be of lstandard style and equipment. The movement of the Acarriage involves no movement of any parts which engage the ribbon, other than theV work-piece itself; and, Vas the work-piece is pressed against the ribparts on the ribbon resulting from movement of the carriage. whole, is, therefore, peculiarly adapted to a mounting .and feed of a Celluloid ribbonl The ribbon is, there-A at type-strokes when the carriage Y 1s statlonary, thereA 1s nofriction of moving The apparatus, as a.

horizontally' crosswise of the machine and work-piece; and thus the ribbon holding and delivery spools 57 may have the standard setting` of the usual inked ribbon spools, and the most desirable feed and mounting of the Celluloid ribbon is had with minimum alteration of standard'construction.

The construction has been described above with particular reference to the use of the same for stenciling, and the ribbon has been stated to be of celluloid or other material suitable for that purpose. lith certain modications, however, the invent-ion, as to various features thereof, may be used for printing or typeivriting in the ordinary manner, in which event the spools 57 and the ribbon may be the spools and inked ribbon ordinarily found in a typewriting machine.

Variations may be resorted to Within the scope of the invention, and portions of the improvements may be used Without others.

Having thus described my invention, I claim:

l. In a typewriting machine, a platen, a stenciling facing therefor, and means for effecting a feed of the facing longitudinally of the line of Writing with respect to the printing point of the platen. i

2. In a typewriting machine, a platen, a stenciling facing therefor in the form of a ribbon, spools for carrying the ribbon', and means for rotating the spools to effect a feed of the ribbon longitudinally of the platen With respect to thek printingpoint of the platen.

3. In a typewriting machine, a platen having a rounded surface, a stenciling facing therefor in the form of a ribbon, means for effecting a feed of the ribbon with respect to the printing point of the platen, and means for bending the ribbon to the curvature of the platen in the feed thereof.

41,-. In a typewriting machine, a platen having a rounded surface, a stenciling facing therefor in the form of a ribbon, meanSv for effecting a feed of the ribbon With respect to the printing point of the platen, and a pulley or spool having a rounded surface for ,bending the ribbon to the curvature of the platen in the feed thereof. i

5. In a typewriting machine, a platen having a convex surface, a stenciling facing therefor inthe form of a ribbon, means for effecting alfeed of the ribbon with respect to the printing point of the platen. and a pulley or spool having a concave surface for bending the ribbon to the curvature of 4the plateniin the feed thereof.

6. In a typevvriting machine, ak platenhaving a convex surface, a stenciling facing therefor V1n the formk of a rlbbcn, means for effecting a feed of the ribbon With respect to the printing point of the platen, a pulley or spool having a concave surface for bending the ribbon tothe curvature of the platen in the feed thereof, and a pulley or spool having aconvex surface for bending the ribbon to the curvature of the concave pulley or spool in the feed thereof.

7. In a typewriting machine, a platen having a convex surface, a stenciling facing therefor in the form of a ribbon, means for effecting a feed of the ribbon with respect to the printing point of the platen, pulleys or spools having a concave surface for bending the ribbon to the curvature of the platen in the feed thereof, and pulleys or spools having aconveX surface for bending the ribbon to the curvature of the concave pulleys or spools in the feed thereof; said pulleys or spools being set for a feed of the ribbon over the convex pulleys, thence rearward around and behind the concave pulleys, and thence forward, around the front of the platen.'

8. In a typewriting machine, a non-revoluble platen, a stenciling facing therefor, and means independent of the platen for effecting a feed ofthe facing endwise of the platen.

9.In atypevvriting machine, a non-revoluble platen, a stenciling facing therefor, means independent of the platen for effecting feed of the facing With respect to the printing point of the platen, and means for effecting a case-shift of the platen and facing.

l0. 'In a typewriting machine, type-.bars adapted to'swing to a common vprinting point, a platen in the form of a non-traveling, non-revoluble block or plate located at such printing point, means for effecting a case-shift of the platen, and guides on which the platen 'hasr a rectilinear case-shifting movement; said guides being 'lived on the stationary main frame ofthe machine.

11. In a typewriting machine, type-bars adapted to -swing to a common printing point, a platen in the form of va non-traveling, non-revoluble block or plate located at such printingpoint, means for effecting a case-shift of the plam,` andv pins on the stationary main frame of the machine passing through the platen to serve as guides for the platen in the case-shifting movements thereof.

12. In a typeWriting machine, type-bars adapted to swing to acommon printing point, a platen in the form of. ablock or plate located atsuch printing point,.a ribbon, guides for guidingthe ribbon over the platen, and means for effecting a case-shift of the yplaten together With said guides'.

'1.3. Ina typewriting machine, type-bars adapted to swing to a common printing point, a platen in the form of. block or bon, guides for guiding the ribbon over the platen, means for effecting a case-shift of the platen and guides, and ribbon-spools for which said guides form Yflanges.

la. In a typewriting machine, type-bars Vadapted to swing to a common printing point, a platen, a workpiece-support, a linespace shaft, means for effecting line-space rotation of the shaft,and means on the shaft for determining line-space movements of the worli-piece-support, and work-piece thereon, `independently 0f the platen and relatively thereto.

l5.` In a typewritiiig machine, type-bars adapted to swing to a common printing point, a platen, a workpiece-support, spring means for moving the workpiece-support in line-space direction, a line-space shaft, means for effecting line-space rotation of the shaft, and means on the shaft for restraining the movement by said spring means of the workpiece-support and thereby controlling the line-space advance of the support.

i6. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen, a work-piece-support, spring' means for moving the work-piecesupport in line-space direction, independently of and relatively to the platen, a linespace shaft, means for effecting line-space rotation of the shaft, and means'on the `shaft for restraining the movement by said spring means of the work-piecesupport and thereby controlling the line-space advance of the support. y

i7. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen, spring means for effecting movement in line-Space direction of workpieces on the platen, and line-space mechanism for retreating step by step, in ad- Vance of the work, to limit the action of said spring means.

18. In a typewriting machine, type-bars adapted to swingto a common printing point, a platen, a worlr-piece-support, a spring connected to the workpiece-support for moving the same in line-space direction, a line-space shaft, means for eecting linespace rotation of the shaft, and means on the shaft for determining the movement by said spring of the workpiecesupport.

19. In a front-strike typewriting machine, type-bars adapted to swing upward and rearward to a common-printing point, a platen, a work-piecesupport movable up and down in front of the platen, resilient means for effecting upward movement of the workpiece-support, line-space mechanism for controlling the upward movement of the sup port by said resilient means, and a common guide for the support and work-piece thereon.

20. In a front-strike typewriting machine, type-bars adapted to` swing upward and `rearward` to a common printing point, a

platen, a support on which the bottom edge of a card may be set at the front of the platen and which may be forced downward with the card in bringing the latter to initial printing position, resilient means for moving the support and card upward, linespace mechanism engageable with the card to determine line-space movement of the card and support by said resilient means, and a fixed chute in which the card has its aforesaid movements.

2l. In a front-strike typewriting machine, type-bars adapted to swing upward and rearward to a common printing point, a platen, a support on which the bottom edge of a card may be set at the front of the Vplaten and which may be forced downward with the card in bringing the latter to initial printing position, resilient means for moving the support and card upward, line-space mechanism engageable with the card to determine line-space movement of the card and support by said resilient means, and ngers of sheet-material, fixed to the frame above the platen, extending downward in front thereof, and folded to receive and guide the side margins of the card.

22. In a front-strike typewriting machine, type-bars `adapted to' swing upward and rearward to a common .printing point, a platen, a support on which the bottom edge of a card may be set at the front of t-he platen and wliichmay be forced downward with the card in bringing the latter to initial printing position, resilient means for moving the support and card upward, linespace mechanismv engageable with the card to determine line-space movement of the card and support by said resilient means, and lingers of sheet-material fixed to the frame above the platen, extending downward in front thereof, folded to receive and guide the side margins of the card, and slotted to receive the card-support, which latter is in the form of a bar which moves as a crosshead in the lingers. Y

23.' In a front-strike typewriting machine, type-bars adapted to swing upward and rearward to a common printing point, a platen, a support on which the bottom edge of a card may be set at the front of the platen and which may be forced downward with the card in bringing the latter to initial printing position, resilient means for moving p support by said resilient means, and fingers of sheet-material, fixed tothe frame above the platen, extending downward in front thereof, folded to receive and guide the side margins of the card, and slotted to receive thegcard-support, which later isin the form of a bar which moves asa cross-head in the fingers, and has its actuating resilient means `in the form of springs connected `thereto outside of the fingers and connected to the frame Aabove the platen.

24. In a front-strike typewriting machine, type-bars` adapted to swing yupward and rearward to a common printing point, a

platema support on which the bottom edge of a card may be set at the front of the platen and ywhich may be forced downward with the card in bringing the latter to initial printing position, resilient means for moving the support and card upward, line-space mechanism engageable with the card to def platen, a support on which the bottom edge of a card maybe set at the front of the platen and which may be forced downward lwith the card in bringingthe latter to initial 4printing position, resilient means for moving thesupport and vcard upward, a ro tary shaft, annrm fixed thereto, a finger, pivoted to the frame above said arm, linked thereto, and .projecting forward into the path movement of the upper edge of the card on Ithe support, to hold the card and card-support against the action of said rei silient means, and means for effecting a line-space movement of the shaft and concomicant vline-space vupward movement of the card-controlling linger.

2G.. `lin a front-strike typewriting machine, type-bars adapted to swing. upward and rearward to a common 4printing point, a platen, a support on which thebottom edge of a card may Vbe set at the front of the` platen andwhich maybe forced downward with the lcard in bringing the latter to initial printing position, resilient means ,for moving the support and card upward, a rotaryshaft, an arm fined thereto, a bail, V'pivoted to the frame above said arm, linked Stliejreto, and having spaced lingers projecting forward into the path of 'move-ment of the upper edge of the card on the support,

gto hold the card and card-support against the act-ion of said resilient means, and means for effecting a line-space `movement of the shaft and concomitant line-space upward movement of the card-controlling lingers.

27. In a front-strike typewriting machine, type-bars adapted to swing upward and rearwardto ajeommon printing point, a platen,

a support on which the bottom edge of a card may beset at the front of the platen and which may be forced downward with the card in bringingthe latter to initial printing position, resilient means for moving the support and card upward, a rotary shaft, a line-space ratchet-wheel thereon, means lfor effecting line-space movement of the ratchet-wheel and shaft, a spring-detent for holding the ratchet-wheel and shaft against unintended rotary movement, and means connected to the shaft for determining line-space movement vof the card-support by its resilient actuating means; said spring-detent,being of Astrength suflicient to prevent rotary movement ofthe shaft by the resilient actuating means for the card-support.

28. In a typewriting machine, a non-revoluble platen, a worli-piece-support, a revoluble line-space shaft, and means connected to the shaft for determining line-space movement of the work-piece-suppo'rt independently of and relatively to the platen.

29. In a typewritingl machine, a rotary line-space shaft, a case-.shift frame in which the shaft is journaled, means for effecting line-space movement ofthe shaft, a non-revoluble platen mounted independently of the case-shift frame and engaged by the shaft to be moved by the latter between case-positions, a work-piece-support, means 'connected to the shaft for determining:line-space movement of' the work-piece-support with respect to the platen, and means for effecting a caseshift movement of s; frame, and, through the frame-carried shaft, of the independently mounted platen.

30. In a typewriting machine, a rotary line-space shaft, a case-shift frame in which the shaft is journaled, meansr for effecting line-space movement of the shaft, a nonrevoluble platen mounted independently of the case-shift frame and engaged by the shaft to be moved by the latter between lcasepositions, 'guides on the-main frame for the platen in its movements between case-.positions, a work-piece-support, means connected to the shaft for determining line-space movement of the workpiece-support with respect to the platen, and means for effecting a caseshiftmovement of said frame and, through the frame-carried shaft, of the independently mounted platen.

31. In a typewriting machine, a rotary line-space shaft, a case-sliift frame in which the shaft is "journaled, means for effecting line-space movement of the shaft, a non-revoluble l'platen mounted independently of 'the case-shift frame and engaged by the shaft to be moved by the latter between case-positions, a workpiece-support, mea'n's connected to the shaft for determining line-space movement of the work-piece-support with respect to the platen, means for effecting a case-shift movement ot said frame to case-shift the work-piece support, means for holding a ribbon to the platen,y and means actuated by said frame for eiiecting acase-shift of the piece-holder and the platen, and a carriagev for the Worlwpiece-holder movable in letterfeed and return directions with respect to the platen.

33. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen fixed at snch printing` point, a workpiece-holder, pulleys or spools set back of the face of the platen for guiding and holding a ribbon to the platen between the Work-piece holder and the platen, and a carriage for the Work-piece-holder movable in letter-'feed and return Vdirections With respect to the platen.

34. In a. typetvriting machine, type-bars adapted to swing to a common printing point, a platen fixed at such printing' point, a work-pieceholder, means set back of thc tace of the platen at the sides thereof for holding` a ribbon to the platen and for guiding` the ribbon horizontally crosswise of the platen between the work-piece-holder and the platen, and a carriage for the workpiece-holder movable in letter-feed and return directions with respect to the platen.

35. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen stationary at the printing point, a workpiece-holder, and a carriage for the Work-piece-holder movable in letterfeed and return directions.

36. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen stationary at the printing point, a Work-piece-holder, a carriage for the Work-pieceholder movable in lette1feed and return directions, and means on the carriage for effecting line-space movement of the workpiece-holder.

37. In a typewriting machine, type-bars adapted to swing to a common printing point, a platen lstationary at the printing point, a Woilepiecefholder, a carriage for the workpiece-holder movable in letter-feed and return directions, means for effecting case-V shiit movement of the Worl-pieceholder, and means for concomitantly effecting case shift movement of the platen.

38. In a typewriting machine, in combina tion, a stationary keyboard, comprising keys, types operated by said keys, a stationary platen against which the types strike, and a traveling Worllcarriage movable in letterieed and `reverse directions to traverse the work past the Writing position.

39. In a typewriting machine, the combination with a platen and Writing instrumentalities, of. a Work-piece-holder, comprising an unyielding leading-edge gage for a Work-piece, a yielding lower-edge gage or work-piece-support, and means urging the kwork-pieceesupport upward toward the leading-edge gage, the arrangement being such that the Worl-piece-sapport may yield in response to pressure ot a downwardly-inserted Work-piece and will then force the Workpiece upward into tiin'i engagement With the leading-edge gage.

FREDERICK U. CONARD. 

